BYTEORDER(3) Linux Programmer's Manual BYTEORDER(3)
NAME
htonl, htons, ntohl, ntohs - convert values between host
and network byte order
SYNOPSIS#include<netinet/in.h>unsignedlonginthtonl(unsignedlonginthostlong);unsignedshortinthtons(unsignedshortinthostshort);unsignedlongintntohl(unsignedlongintnetlong);unsignedshortintntohs(unsignedshortintnetshort);DESCRIPTION
The htonl() function converts the long integer hostlong
from host byte order to network byte order.
The htons() function converts the short integer hostshort
from host byte order to network byte order.
The ntohl() function converts the long integer netlong
from network byte order to host byte order.
The ntohs() function converts the short integer netshort
from network byte order to host byte order.
On the i80x86 the host byte order is Least Significant
Byte first, whereas the network byte order, as used on the
Internet, is Most Significant Byte first.
CONFORMINGTO
BSD 4.3
SEEALSOgethostbyname(3), getservent(3)
BSD April 15, 1993 1